AN: This fic is a result of writer's block on other original projects. Because when you can only get a page or so a day out of your original project seventy pages will come flying out for fan fic. I will attempt to post a chapter every two weeks or so depending on interest, etc. I have the first few chapters stockpiled but since I'm editing this one my own and am working full time job updates may become sporadic. There will not be any pairings for awhile for the kids since they are only eleven. AU after the troll incident. I am taking some liberties with some of the adult characters ages from cannon and relationships. I won't go into that too much yet until we are further in the story for spoiler purposes. There will likely be more information about pairings and what not on my profile page once the story develops further.

Chapter One: Code Black

It was rare that St. Mungo's got an emergency call from Poppy Pomfrey of all people, but on Halloween night Andromeda Tonks found herself at Hogwarts attempting to revive the Boy Who Lived.

"What the hell happened here?"

The boy looked like a bloody mess. He had stopped breathing right after Poppy had called and now both were attempting to revive him.

"Troll," Poppy said.

"Troll? What the fuck?" Andromeda said before mumbling another spell to keep the boy artificially breathing.

"There was so much blood. I couldn't get the other boy in time. He wasn't even recognizable. I don't know how I'm going to explain what happened to those poor, poor, parents."

God damn it, the mediwitch was babbling.

"Poppy, you need to step out." Andromeda hissed as she motioned one of the other healers that came to the floo helped her work on the boy while another one checked on the girl that had also been injured.

From her brief glance, the girl seemed relatively unscathed, maybe a broken arm, but nothing in terms of physical injuries that the boy in front of her was dealing with. If they could get him stabilized then maybe, just maybe, they could get him to St. Mungo's. Even then the boy would be there for a while.

Andromeda knew there had been a fatality at the school that night as well from Poppy's blathering. She didn't even want to think of how that poor child looked when this one was practically broken.

"What the hell," one of the healers said whose focus was on the boy's forehead.

It was bleeding a substance that not blood by any means. Andromeda ignored it for now and muttered a quick evanesco to remove the substance from the child's head while pocketing a vile of the black ooze to do further testing. "Pulse?"

"There's none, Healer Tonks." The young healer said. "Do you want me to perform the charm again?"

"Let me do it," Andromeda said knowing she was more experienced than her intern.

Come on, she thought, as she looked at the boy before casting the spell again. This time he responded to the charm. She turned to her intern, "Go back to Mungo's and tell them we have a Code Black coming through and that we need a secure wing. Let me know when they are ready for transport."

The girl nodded, "You think you can handle the situation alone?"

"I'm going to try to get him stabilized. He's breathing and now has a pulse. Hopefully, I can get him where he can go through the floo."

"The thing on his head. What was that?"

"Morgan," She shook her head. "Not now."

Healer Morgan nodded before going back to St. Mungo's, while Andromeda started muttering charm after charm frowning as she looked at the numbers. The boy's core kept fluctuating. Something obviously traumatic had happened. She had a suspicion regarding what had come out of his head, but she wasn't going to tell anyone what she thought. Not that most people would even know or believe her—she only knew about what she suspected it was because she was a Black.

Or used to be a Black.

The core was disastrous, and the injuries were almost worse. She didn't know how he was still alive, and the injuries didn't seem to pertain to just the troll, it was clear there had been years of neglect and abuse that the boy had been subjected to.

"Andromeda, what a pleasant surprise. Poppy said you were here"

Great. Just who she wanted to deal with just now: Albus freaking Dumbledore

"Now's not the time, Albus, if you want your student to live." She hissed knowing she probably sounded just like her deranged sister. Probably looked like her too since know what using lots of magic did to her hair.

She once again glanced at the boy's vitals frowning when she looked at the information regarding his blood type. She'd have to run these again for sure once she was at St. Mungo's.

"Now, Andromeda. Please, let me—"

"Healer Tonks," Morgan called from the floo. "The unit's ready. Is he stable for transport?"

"Yes, we're coming through."

"I'm coming as well," Dumbledore said.

She was about to argue with the man when the loud wails of Molly Weasley could be heard through the hospital wing.

Andromeda blanched knowing she didn't need to ask which family the student had died was from.

She had encountered the Weasley woman a few times when Nymphadora attended school with Weasley's son, Charlie. It amazed her that they were distantly related. Weasley was everything for the most part that Drusilla Black had drilled into her daughters not to act like.

Of course, Weasley had married a pureblood and had seven million children. Mother probably would've liked that.

"Not my Ronnie! Not my Ronnie!"

The wails were getting louder.

Looking at Dumbledore she said, "I think you need to console Molly and let her know how a troll got onto campus."

Dumbledore looked at her, "But—"

Andromeda just shook her head before levitating the boy towards the floo. Luckily, Molly Weasley entered the room at that exact moment and kept Albus Dumbledore from interfering further. Sometimes she really understood Mother's irritation with that man.

Once she got to St. Mungo's and they got the boy in a bed and given a stabilizer potion she ran her scans again and frowned when she saw that what she conjured was not a fluke. This could not be right.

Morgan looked at her, "You look perplexed, boss."

" I just need to consult with someone on this scan."

"Do you want me to get a blood replenisher potion ready."

Andromeda shook her head.

"But the kid lost a lot of blood."

"I need to consult with a specialist about that." Andromeda said inwardly grimacing at who she was going to call.

Morgan gave her a weird look.

"The Potters are an old family."

"Oh," She said, "I didn't realize that they had blood issues."

Andromeda just nodded as she looked at the boy. She couldn't really make out his features. Everyone said he was the spitting image of James, but his features were so marred currently she couldn't exactly tell one way or the other.

Finally, she got to her office and through the powder into the fireplace to the healer she was contacting.

Andromeda was still surprised that she was even working at this point. Then again, she hadn't talked to her in years. The last time was probably when they had briefly interacted when she still had worked at St. Mungo's and that was over a decade ago.

"Andi?"

"Cissy, it's been awhile." She said seeing her sister's face in the floo.

Narcissa looked as pristine as ever even though it was now almost past midnight, unlike Andromeda who was pretty sure she looked like a mess with her bloodstained healer robes and Bellatrix hair.

"Why are you calling?"

"I need your professional opinion on someone." She said, "It involves a blood issue which I know is your specialty."

Because of course Narcissa had specialized in pureblood disorders.

A couple of seconds later Narcissa came in the floo looking clearly uncomfortable. Andromeda noted that her sister was still dressed in an evening robes that essentially looked like a sown spider web and it might've been given her sister's love for acromantula silk. Her blonde hair was pulled up in a sleek knot and her face was fully made up. It was Hallows Eve she wouldn't be surprised if she had attended some soiree for the evening after performing the usual rites.

"You look well." Narcissa finally said though Andromeda knew she looked anything but.

"Here," Andromeda said handing her the boy's chart and not wanting to engage in meaningless small talk. Small talk had ended for them almost twenty years ago.

Narcissa grabbed the chart and glanced at it and saw all the injuries. "How is the boy even alive?"

"He's barely alive. And he needs blood replenishment potions." Andromeda

"You don't say," Narcissa said rolling her eyes. "And if you were able to come to this amazing conclusion why do you need me?"

"Look at his blood type, Cissy."

Narissa turned almost white when she saw what Andromeda had pointed out "That's impossible."

"Oh, I checked multiple times. Harry Potter has Black blood."

"Again, impossible. None of the Potters were close enough relation to the family to have Black blood."

"I believe there was a Dorea Black Potter."

Narcissa shook her head, "Related through marriage only. And Lily Evans was a mudblood."

Andromeda tried not to flinch at her sister's use of that word. It had taken her years of practice not to say it herself. She was reminded of her old life when she heard it, a life she never wanted to go back to.

"The markers are exceedingly high too." Narcissa said looking further at the readings. "It indicates that both parents had to be of Black descent."

They looked at each other knowing that the boy in the hospital wing was not Harry Potter.

"Get some of his blood and be discrete about it. I'll run some tests in my lab. In the meantime, I'll get you the adjusted potions so he can handle the replenishment potions. You do know that every procedure he is going to need is going to get further complicated because of this. How did he end up here? I thought he was at the school."

"He was there. There was an incident with a troll."

"A what?" Narcissa's eyes went wide. "Merlin, I need to contact Lucius. Draco…"

Andromeda nodded. Though she was pretty sure Draco was fine. Or at least not in a body bag like poor Ronald Weasley.

Harry never knew he had a rare blood type until he woke up. How would he? He never needed a transfusion, never had his blood taken, or anything like that. Hell, hadn't even been to the doctor come to think about it. All the scrapes and bruises that Dudley caused healed pretty much overnight. Vernon may have busted him up occasionally, but he was fine (eventually). The couple of times he actually did get sick, Aunt Petunia had thrown him a bottle of cough syrup and told him to take it. Even with his glasses, he probably wouldn't have gotten them had the school nurse not said anything to Petunia and even then she just took him to the pharmacy and got the cheapest pair they could find.

Yet, somehow here he was in the wizard hospital of all things (who knew such a place existed) being told he had been hurt because a troll had gotten inside the school.

He couldn't remember the troll.

Why was a troll in the school?

Harry really couldn't remember much of what happened since he got his letter. He had a couple of recollections of shopping for his school things but that was about it.

When he told this to the attending healer she told him that it was possible that the head trauma could cause memory issues.

"Why was I attacked by a troll though? I thought Haggis said Hogwarts is the safest place on Earth besides Gringotts?"

"I think you meant Hagrid and I cannot answer that, " The healer said as she handed him a pain potion to take. He hadn't even told her his head hurt. He hoped it wouldn't take gross like that cough syrup did—he could still remember the bitter taste that the thick liquid had all these years later.

"It's not that bad," the healer told him as she saw him staring at the potion. "We try to make the potions tolerable enough when we can."

Harry reluctantly took a sip. She was right, it wasn't horrible.

"Can't promise that about some of the other ones though. Is the pain a little better, child?"

He nodded as he grimaced, "I don't think I asked what your name was."

"To be fair you barely awake. But my name is Healer Tonks. I'm your head healer."

"Head healer?" He asked.

"There's a team of us working on you, young man." She said, "You came in in pretty bad condition."

"I usually heal right up." He said thinking of all the times he had healed after getting into some sort of scrap at the Dursleys. Including Petunia hitting him with a frying pan. He was still amazed he didn't have a concussion from that incident.

"Are you usually attacked by a troll?"

"I didn't even know trolls existed." He said softly.

Healer Tonks frowned.

"I grew up with my relatives. I didn't know magic was real until Haggis—err, Hagrid— came. I don't remember reading my books, so I probably wouldn't remember coming across them."

Healer Tonks looked like she wanted to say something, Harry was going to ask her what but she shook her head. "I guess that explains why we don't have your shot records."

"Shots?"

"There are several wizarding immunizations that children are required to get." She said, "Don't worry that will be fixed."

Harry grimaced thinking of the way Dudley would scream anytime Petunia took him to get his vaccinations. The tantrums usually resulted in Dudley either getting an ice cream cone or a new toy.

"Wizarding immunizations are not as bad as muggle ones, child." The healer said. "Besides, after everything you'll be going through it's the least likely painful procedure you'll have."

"Procedures?"

He was then told how hurt he was. The troll had apparently attacked him and a couple of other students. He had been clobbered and thrown around. It really was lucky that he was alive. One of the other students though was killed at the scene.

Harry had stopped breathing though. Healer Tonks apparently had to restart his heart before getting him transferred to St. Mungo's.

"So, I'm better now?" He asked.

She shook her head, "No, there's several things that still have to be fixed. Between your core and blood type it's going to take a while."

"My blood type?"

She nodded and simply stated, "You have Black blood."

"Black blood?" He said, "I thought blood type was like type O, A, B, that sort of thing. Does B stand for Black?"

"No," The healer said. "It's a type of wizarding blood. One family is known for having it."

"Why is it called Black not Potter blood?" He asked.

"Because the Black family is the only family known to have Black blood. It's not a Potter trait."

"So was my mum a Black then?" He asked, "Or maybe one of my grandparents?"

"There was a Black that married into the Potter family," Healer Tonks said.

"Then my mum?"

"Lily Potter was a muggleborn." Healer Tonks said, "There would not be a Black relation."

There was something odd about Healer Tonks's face when she said this.

"Then how? Harry asked.

The healer sighed, "We are looking into that."

"What does looking into mean?"

"We're running some more tests." The healer said looking at him oddly almost as if she was studying him.

For what though, Harry didn't know. Healer Tonks was a very pretty woman. She had sharp cheekbones and eyes that were a strange color of grey. Harry couldn't tell if they reminded him more of chips of ice or silver. Her hair was a dark brown color and was pulled back in a bun though there were a couple of curls coming loose. Even in her healer scrubs there was something about her that reminded him of those snooty aristocratic women that Aunt Petunia always tried to emulate in the magazines.

"What kind of tests?"

"My colleague is handling it." She stated before changing the subject and discussing his memory.

"Memory loss is typical after almost being clubbed to death."

"So, I'm not the only one who has been mauled by a troll." Hary asked thinking what sort of a world he had entered.

"I should've clarified head trauma in general." The healer rolled her eyes that despite the cold looking color sparkled with warmth. "It's really not that unusual to lose some months with an incident such as yours."

"Do trolls normally invade Hogwarts?"

"No," She said her lip pursed. "There will be an investigation regarding that."

"Investigation?"

As usual though the healer deflected the conversation and asked him what flavor he wanted his potions. Not that he really cared if she flavored his potions to taste like chocolate frogs or fizzing whizbees or whatever they were called.

He really didn't have too much to time to think. Most of the times he was awake he was given potions that quickly had him made him sleepy.

He was surprised when he woke up and saw a blonde woman looking at him. She looked oddly familiar, but he couldn't place her. Unlike Healer Tonks she wasn't wearing healer robes, but was waving her wand in a similar motion to Healer Tonks to check his vitals.

She smiled sadly at him, "How are you feeling, sweetheart?"

"Do I know you?" He asked bewildered that she was addressing him like that. No one addressed him as sweetheart. The Dursleys had always addressed him as boy when he wasn't called freak and his teachers either addressed him as Mr. Potter or by his full name.

"Narcissa, what are you doing?" Healer Tonks said walking into the room.

It then dawned on Harry that Narcissa looked just very similar to Healer Tonks, save for her hair color. They even had the same color of eyes.

"Andromeda." Narcissa said back, "He needs to be aware of what's going on."

"I told you he is still fragile."

" Oh, I'm very aware. I am just involved in his case as you are if you forget."

"I haven't forgotten." She said before looking at Harry. "Harry, this is Healer Malfoy she is helping me consult on your case."

"It's still Healer Black actually."

Healer Tonks gave her a strange look.

"I kept my maiden name for professional reasons." The blonde stated rolling her eyes at Healer Tonks.

The woman sighed, "We should wait until everything is sorted out."

"I really don't know what there is to sort out, Andi. The results are back. I checked them three times. We used multiple samples. He deserves to know the truth about who he is."

"The truth?" Harry asked, "What are you talking about?"

"Cissy."

"There's no point keeping it from him he will find out. There's no going back at this point. That blasted potion will be flushed out of his system. He'll know soon enough."

Healer Tonks had an annoyed look on her face before she stated, "You know it will take awhile due to all the complications and..."

"Potion?" He asked. "I've never taken any potions."

Andromeda sighed and glared at Narcissa before turning back to Harry. "This conversation can wait."

"What do you know about your parents, Harry?" Healer Black asked.

"That they're dead." He stated. "Aunt Petunia said they died in a car accident they were drunk. I know that's not true but I can't remember how they died. I'm sorry, I can't remember a lot of things from this summer on."

"It is okay, Harry, totally expected." Healer Tonks shot Healer Black a look.

Healer Black rolled her eyes at Healer Tonks, "That probably makes things easier in a way."

"Oh, easier that he can't remember the past four months." Healer Tonks huffed.

"Can you just tell me what's going on?" Harry asked.

"To put it bluntly," Healer Black said. "The Potters were not your biological parents."

Chapter 2 Preview: At least one of Harry's parents will be revealed.